Fix filter leaking
If filter is called after using a first transform `shuffle`, `select`, `shard`, `train_test_split`, or `filter`, then it could not work as expected and return examples from before the first transform. This is because the indices mapping was not taken into account when saving the indices to keep when doing the filtering

Affected versions: 1.12.0 and 1.12.1

This should fix issue https://github.com/huggingface/datasets/issues/3010